ARM: imx: dynamically register spi_imx devices (imx21)

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
diff --git a/arch/arm/mach-imx/devices-imx21.h b/arch/arm/mach-imx/devices-imx21.h
index c6e5f50..de80ccd 100644
--- a/arch/arm/mach-imx/devices-imx21.h
+++ b/arch/arm/mach-imx/devices-imx21.h
@@ -14,3 +14,8 @@
 
 #define imx21_add_mxc_nand(pdata)	\
 	imx_add_mxc_nand_v1(MX21_NFC_BASE_ADDR, MX21_INT_NANDFC, pdata)
+
+#define imx21_add_spi_imx0(pdata)	\
+	imx_add_spi_imx(0, MX21_CSPI1_BASE_ADDR, SZ_4K, MX21_INT_CSPI1, pdata)
+#define imx21_add_spi_imx1(pdata)	\
+	imx_add_spi_imx(1, MX21_CSPI2_BASE_ADDR, SZ_4K, MX21_INT_CSPI2, pdata)